Home / 5,720.85-7,898.58-4,392.18

Finding the Fourth Proportional to 5,720.85, 7,898.58 and 4,392.18

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Solution

The fourth proportional to 5,720.85, 7,898.58 and 4,392.18 is: 6,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.85 : 7,898.58 = 4,392.18 : x
  2. Step 2: Convert to fraction form
    5,720.85/7,898.58 = 4,392.18/x
  3. Step 3: Cross multiply
    5,720.85x = 7,898.58 × 4,392.18
  4. Step 4: Simplify right side
    5,720.85x = 34,691,985.10
  5. Step 5: Solve for x
    x = 34,691,985.10/5,720.85
  6. Step 6: Final answer
    x = 6,064.13

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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.