Home / 4,428.65-6,642.46-1,142

Finding the Fourth Proportional to 4,428.65, 6,642.46 and 1,142

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Solution

The fourth proportional to 4,428.65, 6,642.46 and 1,142 is: 1,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.65 : 6,642.46 = 1,142 : x
  2. Step 2: Convert to fraction form
    4,428.65/6,642.46 = 1,142/x
  3. Step 3: Cross multiply
    4,428.65x = 6,642.46 × 1,142
  4. Step 4: Simplify right side
    4,428.65x = 7,585,689.32
  5. Step 5: Solve for x
    x = 7,585,689.32/4,428.65
  6. Step 6: Final answer
    x = 1,712.87

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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.