Home / 5,031.12-7,547.81-1,521.19

Finding the Fourth Proportional to 5,031.12, 7,547.81 and 1,521.19

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Solution

The fourth proportional to 5,031.12, 7,547.81 and 1,521.19 is: 2,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.12 : 7,547.81 = 1,521.19 : x
  2. Step 2: Convert to fraction form
    5,031.12/7,547.81 = 1,521.19/x
  3. Step 3: Cross multiply
    5,031.12x = 7,547.81 × 1,521.19
  4. Step 4: Simplify right side
    5,031.12x = 11,481,654.92
  5. Step 5: Solve for x
    x = 11,481,654.92/5,031.12
  6. Step 6: Final answer
    x = 2,282.13

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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.