Home / 5,774.18-8,660.40-1,613.76

Finding the Fourth Proportional to 5,774.18, 8,660.40 and 1,613.76

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Solution

The fourth proportional to 5,774.18, 8,660.40 and 1,613.76 is: 2,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.18 : 8,660.40 = 1,613.76 : x
  2. Step 2: Convert to fraction form
    5,774.18/8,660.40 = 1,613.76/x
  3. Step 3: Cross multiply
    5,774.18x = 8,660.40 × 1,613.76
  4. Step 4: Simplify right side
    5,774.18x = 13,975,807.10
  5. Step 5: Solve for x
    x = 13,975,807.10/5,774.18
  6. Step 6: Final answer
    x = 2,420.40

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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.