Home / 6,515.32-8,988.42-4,156.84

Finding the Fourth Proportional to 6,515.32, 8,988.42 and 4,156.84

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Solution

The fourth proportional to 6,515.32, 8,988.42 and 4,156.84 is: 5,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.32 : 8,988.42 = 4,156.84 : x
  2. Step 2: Convert to fraction form
    6,515.32/8,988.42 = 4,156.84/x
  3. Step 3: Cross multiply
    6,515.32x = 8,988.42 × 4,156.84
  4. Step 4: Simplify right side
    6,515.32x = 37,363,423.79
  5. Step 5: Solve for x
    x = 37,363,423.79/6,515.32
  6. Step 6: Final answer
    x = 5,734.70

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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.