Home / 5,416.64-8,124.96-1,521.18

Finding the Fourth Proportional to 5,416.64, 8,124.96 and 1,521.18

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Solution

The fourth proportional to 5,416.64, 8,124.96 and 1,521.18 is: 2,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.64 : 8,124.96 = 1,521.18 : x
  2. Step 2: Convert to fraction form
    5,416.64/8,124.96 = 1,521.18/x
  3. Step 3: Cross multiply
    5,416.64x = 8,124.96 × 1,521.18
  4. Step 4: Simplify right side
    5,416.64x = 12,359,526.65
  5. Step 5: Solve for x
    x = 12,359,526.65/5,416.64
  6. Step 6: Final answer
    x = 2,281.77

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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.