Home / 3,714.68-5,130.45-2,885.37

Finding the Fourth Proportional to 3,714.68, 5,130.45 and 2,885.37

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Solution

The fourth proportional to 3,714.68, 5,130.45 and 2,885.37 is: 3,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.68 : 5,130.45 = 2,885.37 : x
  2. Step 2: Convert to fraction form
    3,714.68/5,130.45 = 2,885.37/x
  3. Step 3: Cross multiply
    3,714.68x = 5,130.45 × 2,885.37
  4. Step 4: Simplify right side
    3,714.68x = 14,803,246.52
  5. Step 5: Solve for x
    x = 14,803,246.52/3,714.68
  6. Step 6: Final answer
    x = 3,985.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.