Home / 2,349.84-3,242.74-1,287.59

Finding the Fourth Proportional to 2,349.84, 3,242.74 and 1,287.59

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Solution

The fourth proportional to 2,349.84, 3,242.74 and 1,287.59 is: 1,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.84 : 3,242.74 = 1,287.59 : x
  2. Step 2: Convert to fraction form
    2,349.84/3,242.74 = 1,287.59/x
  3. Step 3: Cross multiply
    2,349.84x = 3,242.74 × 1,287.59
  4. Step 4: Simplify right side
    2,349.84x = 4,175,319.60
  5. Step 5: Solve for x
    x = 4,175,319.60/2,349.84
  6. Step 6: Final answer
    x = 1,776.85

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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.