Home / 2,985.08-4,119.28-1,658.74

Finding the Fourth Proportional to 2,985.08, 4,119.28 and 1,658.74

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Solution

The fourth proportional to 2,985.08, 4,119.28 and 1,658.74 is: 2,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.08 : 4,119.28 = 1,658.74 : x
  2. Step 2: Convert to fraction form
    2,985.08/4,119.28 = 1,658.74/x
  3. Step 3: Cross multiply
    2,985.08x = 4,119.28 × 1,658.74
  4. Step 4: Simplify right side
    2,985.08x = 6,832,814.51
  5. Step 5: Solve for x
    x = 6,832,814.51/2,985.08
  6. Step 6: Final answer
    x = 2,288.99

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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.