Home / 4,945.15-7,417.68-1,247.59

Finding the Fourth Proportional to 4,945.15, 7,417.68 and 1,247.59

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Solution

The fourth proportional to 4,945.15, 7,417.68 and 1,247.59 is: 1,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.15 : 7,417.68 = 1,247.59 : x
  2. Step 2: Convert to fraction form
    4,945.15/7,417.68 = 1,247.59/x
  3. Step 3: Cross multiply
    4,945.15x = 7,417.68 × 1,247.59
  4. Step 4: Simplify right side
    4,945.15x = 9,254,223.39
  5. Step 5: Solve for x
    x = 9,254,223.39/4,945.15
  6. Step 6: Final answer
    x = 1,871.37

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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.