Home / 5,131.32-7,088.76-4,392.96

Finding the Fourth Proportional to 5,131.32, 7,088.76 and 4,392.96

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Solution

The fourth proportional to 5,131.32, 7,088.76 and 4,392.96 is: 6,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.32 : 7,088.76 = 4,392.96 : x
  2. Step 2: Convert to fraction form
    5,131.32/7,088.76 = 4,392.96/x
  3. Step 3: Cross multiply
    5,131.32x = 7,088.76 × 4,392.96
  4. Step 4: Simplify right side
    5,131.32x = 31,140,639.13
  5. Step 5: Solve for x
    x = 31,140,639.13/5,131.32
  6. Step 6: Final answer
    x = 6,068.74

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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.