Home / 5,780.43-8,670.65-2,315.25

Finding the Fourth Proportional to 5,780.43, 8,670.65 and 2,315.25

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Solution

The fourth proportional to 5,780.43, 8,670.65 and 2,315.25 is: 3,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.43 : 8,670.65 = 2,315.25 : x
  2. Step 2: Convert to fraction form
    5,780.43/8,670.65 = 2,315.25/x
  3. Step 3: Cross multiply
    5,780.43x = 8,670.65 × 2,315.25
  4. Step 4: Simplify right side
    5,780.43x = 20,074,710.84
  5. Step 5: Solve for x
    x = 20,074,710.84/5,780.43
  6. Step 6: Final answer
    x = 3,472.88

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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.