Home / 7,480.02-10,322.49-4,122.95

Finding the Fourth Proportional to 7,480.02, 10,322.49 and 4,122.95

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Solution

The fourth proportional to 7,480.02, 10,322.49 and 4,122.95 is: 5,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.02 : 10,322.49 = 4,122.95 : x
  2. Step 2: Convert to fraction form
    7,480.02/10,322.49 = 4,122.95/x
  3. Step 3: Cross multiply
    7,480.02x = 10,322.49 × 4,122.95
  4. Step 4: Simplify right side
    7,480.02x = 42,559,110.15
  5. Step 5: Solve for x
    x = 42,559,110.15/7,480.02
  6. Step 6: Final answer
    x = 5,689.71

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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.