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Finding the Fourth Proportional to 7,901.20, 10,903.09 and 4,364.13

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Solution

The fourth proportional to 7,901.20, 10,903.09 and 4,364.13 is: 6,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.20 : 10,903.09 = 4,364.13 : x
  2. Step 2: Convert to fraction form
    7,901.20/10,903.09 = 4,364.13/x
  3. Step 3: Cross multiply
    7,901.20x = 10,903.09 × 4,364.13
  4. Step 4: Simplify right side
    7,901.20x = 47,582,502.16
  5. Step 5: Solve for x
    x = 47,582,502.16/7,901.20
  6. Step 6: Final answer
    x = 6,022.19

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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.