Home / 5,031.78-7,547.67-2,070.21

Finding the Fourth Proportional to 5,031.78, 7,547.67 and 2,070.21

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Solution

The fourth proportional to 5,031.78, 7,547.67 and 2,070.21 is: 3,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.78 : 7,547.67 = 2,070.21 : x
  2. Step 2: Convert to fraction form
    5,031.78/7,547.67 = 2,070.21/x
  3. Step 3: Cross multiply
    5,031.78x = 7,547.67 × 2,070.21
  4. Step 4: Simplify right side
    5,031.78x = 15,625,261.91
  5. Step 5: Solve for x
    x = 15,625,261.91/5,031.78
  6. Step 6: Final answer
    x = 3,105.32

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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.