Home / 7,901.23-10,905.87-4,915.29

Finding the Fourth Proportional to 7,901.23, 10,905.87 and 4,915.29

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Solution

The fourth proportional to 7,901.23, 10,905.87 and 4,915.29 is: 6,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.23 : 10,905.87 = 4,915.29 : x
  2. Step 2: Convert to fraction form
    7,901.23/10,905.87 = 4,915.29/x
  3. Step 3: Cross multiply
    7,901.23x = 10,905.87 × 4,915.29
  4. Step 4: Simplify right side
    7,901.23x = 53,605,513.75
  5. Step 5: Solve for x
    x = 53,605,513.75/7,901.23
  6. Step 6: Final answer
    x = 6,784.45

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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.