Home / 7,335.52-10,122.95-3,978.41

Finding the Fourth Proportional to 7,335.52, 10,122.95 and 3,978.41

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Solution

The fourth proportional to 7,335.52, 10,122.95 and 3,978.41 is: 5,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.52 : 10,122.95 = 3,978.41 : x
  2. Step 2: Convert to fraction form
    7,335.52/10,122.95 = 3,978.41/x
  3. Step 3: Cross multiply
    7,335.52x = 10,122.95 × 3,978.41
  4. Step 4: Simplify right side
    7,335.52x = 40,273,210.26
  5. Step 5: Solve for x
    x = 40,273,210.26/7,335.52
  6. Step 6: Final answer
    x = 5,490.16

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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.