Home / 6,931.02-9,564.80-3,787.21

Finding the Fourth Proportional to 6,931.02, 9,564.80 and 3,787.21

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Solution

The fourth proportional to 6,931.02, 9,564.80 and 3,787.21 is: 5,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.02 : 9,564.80 = 3,787.21 : x
  2. Step 2: Convert to fraction form
    6,931.02/9,564.80 = 3,787.21/x
  3. Step 3: Cross multiply
    6,931.02x = 9,564.80 × 3,787.21
  4. Step 4: Simplify right side
    6,931.02x = 36,223,884.66
  5. Step 5: Solve for x
    x = 36,223,884.66/6,931.02
  6. Step 6: Final answer
    x = 5,226.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.