Home / 2,487.56-3,432.86-1,368.60

Finding the Fourth Proportional to 2,487.56, 3,432.86 and 1,368.60

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Solution

The fourth proportional to 2,487.56, 3,432.86 and 1,368.60 is: 1,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.56 : 3,432.86 = 1,368.60 : x
  2. Step 2: Convert to fraction form
    2,487.56/3,432.86 = 1,368.60/x
  3. Step 3: Cross multiply
    2,487.56x = 3,432.86 × 1,368.60
  4. Step 4: Simplify right side
    2,487.56x = 4,698,212.20
  5. Step 5: Solve for x
    x = 4,698,212.20/2,487.56
  6. Step 6: Final answer
    x = 1,888.68

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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.