Home / 5,587.85-7,711.40-3,070.12

Finding the Fourth Proportional to 5,587.85, 7,711.40 and 3,070.12

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Solution

The fourth proportional to 5,587.85, 7,711.40 and 3,070.12 is: 4,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.85 : 7,711.40 = 3,070.12 : x
  2. Step 2: Convert to fraction form
    5,587.85/7,711.40 = 3,070.12/x
  3. Step 3: Cross multiply
    5,587.85x = 7,711.40 × 3,070.12
  4. Step 4: Simplify right side
    5,587.85x = 23,674,926.22
  5. Step 5: Solve for x
    x = 23,674,926.22/5,587.85
  6. Step 6: Final answer
    x = 4,236.86

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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.