Home / 2,430.81-3,642.57-1,811.61

Finding the Fourth Proportional to 2,430.81, 3,642.57 and 1,811.61

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Solution

The fourth proportional to 2,430.81, 3,642.57 and 1,811.61 is: 2,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.81 : 3,642.57 = 1,811.61 : x
  2. Step 2: Convert to fraction form
    2,430.81/3,642.57 = 1,811.61/x
  3. Step 3: Cross multiply
    2,430.81x = 3,642.57 × 1,811.61
  4. Step 4: Simplify right side
    2,430.81x = 6,598,916.24
  5. Step 5: Solve for x
    x = 6,598,916.24/2,430.81
  6. Step 6: Final answer
    x = 2,714.70

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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.