Home / 5,031.15-7,547.79-1,521.42

Finding the Fourth Proportional to 5,031.15, 7,547.79 and 1,521.42

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Solution

The fourth proportional to 5,031.15, 7,547.79 and 1,521.42 is: 2,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.15 : 7,547.79 = 1,521.42 : x
  2. Step 2: Convert to fraction form
    5,031.15/7,547.79 = 1,521.42/x
  3. Step 3: Cross multiply
    5,031.15x = 7,547.79 × 1,521.42
  4. Step 4: Simplify right side
    5,031.15x = 11,483,358.66
  5. Step 5: Solve for x
    x = 11,483,358.66/5,031.15
  6. Step 6: Final answer
    x = 2,282.45

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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.