Home / 6,945.90-10,417.00-1,947.98

Finding the Fourth Proportional to 6,945.90, 10,417.00 and 1,947.98

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Solution

The fourth proportional to 6,945.90, 10,417.00 and 1,947.98 is: 2,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.90 : 10,417.00 = 1,947.98 : x
  2. Step 2: Convert to fraction form
    6,945.90/10,417.00 = 1,947.98/x
  3. Step 3: Cross multiply
    6,945.90x = 10,417.00 × 1,947.98
  4. Step 4: Simplify right side
    6,945.90x = 20,292,045.84
  5. Step 5: Solve for x
    x = 20,292,045.84/6,945.90
  6. Step 6: Final answer
    x = 2,921.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.