Home / 5,615.10-8,422.65-4,521.60

Finding the Fourth Proportional to 5,615.10, 8,422.65 and 4,521.60

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Solution

The fourth proportional to 5,615.10, 8,422.65 and 4,521.60 is: 6,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.10 : 8,422.65 = 4,521.60 : x
  2. Step 2: Convert to fraction form
    5,615.10/8,422.65 = 4,521.60/x
  3. Step 3: Cross multiply
    5,615.10x = 8,422.65 × 4,521.60
  4. Step 4: Simplify right side
    5,615.10x = 38,083,854.24
  5. Step 5: Solve for x
    x = 38,083,854.24/5,615.10
  6. Step 6: Final answer
    x = 6,782.40

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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.