Home / 3,715.13-5,125.95-2,390.58

Finding the Fourth Proportional to 3,715.13, 5,125.95 and 2,390.58

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Solution

The fourth proportional to 3,715.13, 5,125.95 and 2,390.58 is: 3,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.13 : 5,125.95 = 2,390.58 : x
  2. Step 2: Convert to fraction form
    3,715.13/5,125.95 = 2,390.58/x
  3. Step 3: Cross multiply
    3,715.13x = 5,125.95 × 2,390.58
  4. Step 4: Simplify right side
    3,715.13x = 12,253,993.55
  5. Step 5: Solve for x
    x = 12,253,993.55/3,715.13
  6. Step 6: Final answer
    x = 3,298.40

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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.