Home / 3,031.02-4,182.77-1,686.62

Finding the Fourth Proportional to 3,031.02, 4,182.77 and 1,686.62

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Solution

The fourth proportional to 3,031.02, 4,182.77 and 1,686.62 is: 2,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.02 : 4,182.77 = 1,686.62 : x
  2. Step 2: Convert to fraction form
    3,031.02/4,182.77 = 1,686.62/x
  3. Step 3: Cross multiply
    3,031.02x = 4,182.77 × 1,686.62
  4. Step 4: Simplify right side
    3,031.02x = 7,054,758.21
  5. Step 5: Solve for x
    x = 7,054,758.21/3,031.02
  6. Step 6: Final answer
    x = 2,327.52

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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.