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Finding the Fourth Proportional to 6,564.40, 9,848.20 and 1,947.40

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Solution

The fourth proportional to 6,564.40, 9,848.20 and 1,947.40 is: 2,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,564.40 : 9,848.20 = 1,947.40 : x
  2. Step 2: Convert to fraction form
    6,564.40/9,848.20 = 1,947.40/x
  3. Step 3: Cross multiply
    6,564.40x = 9,848.20 × 1,947.40
  4. Step 4: Simplify right side
    6,564.40x = 19,178,384.68
  5. Step 5: Solve for x
    x = 19,178,384.68/6,564.40
  6. Step 6: Final answer
    x = 2,921.57

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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.