Home / 5,598.90-8,402.40-3,131.10

Finding the Fourth Proportional to 5,598.90, 8,402.40 and 3,131.10

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Solution

The fourth proportional to 5,598.90, 8,402.40 and 3,131.10 is: 4,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598.90 : 8,402.40 = 3,131.10 : x
  2. Step 2: Convert to fraction form
    5,598.90/8,402.40 = 3,131.10/x
  3. Step 3: Cross multiply
    5,598.90x = 8,402.40 × 3,131.10
  4. Step 4: Simplify right side
    5,598.90x = 26,308,754.64
  5. Step 5: Solve for x
    x = 26,308,754.64/5,598.90
  6. Step 6: Final answer
    x = 4,698.91

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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.