Home / 5,718.40-8,585.70-3,531.40

Finding the Fourth Proportional to 5,718.40, 8,585.70 and 3,531.40

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Solution

The fourth proportional to 5,718.40, 8,585.70 and 3,531.40 is: 5,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.40 : 8,585.70 = 3,531.40 : x
  2. Step 2: Convert to fraction form
    5,718.40/8,585.70 = 3,531.40/x
  3. Step 3: Cross multiply
    5,718.40x = 8,585.70 × 3,531.40
  4. Step 4: Simplify right side
    5,718.40x = 30,319,540.98
  5. Step 5: Solve for x
    x = 30,319,540.98/5,718.40
  6. Step 6: Final answer
    x = 5,302.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.