Home / 6,512.55-8,987.31-3,528.40

Finding the Fourth Proportional to 6,512.55, 8,987.31 and 3,528.40

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Solution

The fourth proportional to 6,512.55, 8,987.31 and 3,528.40 is: 4,869.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.55 : 8,987.31 = 3,528.40 : x
  2. Step 2: Convert to fraction form
    6,512.55/8,987.31 = 3,528.40/x
  3. Step 3: Cross multiply
    6,512.55x = 8,987.31 × 3,528.40
  4. Step 4: Simplify right side
    6,512.55x = 31,710,824.60
  5. Step 5: Solve for x
    x = 31,710,824.60/6,512.55
  6. Step 6: Final answer
    x = 4,869.19

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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.