Home / 2,985.14-4,119.15-1,658.63

Finding the Fourth Proportional to 2,985.14, 4,119.15 and 1,658.63

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Solution

The fourth proportional to 2,985.14, 4,119.15 and 1,658.63 is: 2,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.14 : 4,119.15 = 1,658.63 : x
  2. Step 2: Convert to fraction form
    2,985.14/4,119.15 = 1,658.63/x
  3. Step 3: Cross multiply
    2,985.14x = 4,119.15 × 1,658.63
  4. Step 4: Simplify right side
    2,985.14x = 6,832,162.28
  5. Step 5: Solve for x
    x = 6,832,162.28/2,985.14
  6. Step 6: Final answer
    x = 2,288.72

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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.