Home / 2,389.55-3,581.24-1,927.53

Finding the Fourth Proportional to 2,389.55, 3,581.24 and 1,927.53

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Solution

The fourth proportional to 2,389.55, 3,581.24 and 1,927.53 is: 2,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.55 : 3,581.24 = 1,927.53 : x
  2. Step 2: Convert to fraction form
    2,389.55/3,581.24 = 1,927.53/x
  3. Step 3: Cross multiply
    2,389.55x = 3,581.24 × 1,927.53
  4. Step 4: Simplify right side
    2,389.55x = 6,902,937.90
  5. Step 5: Solve for x
    x = 6,902,937.90/2,389.55
  6. Step 6: Final answer
    x = 2,888.81

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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.