Home / 3,531.60-5,297.40-3,312.90

Finding the Fourth Proportional to 3,531.60, 5,297.40 and 3,312.90

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Solution

The fourth proportional to 3,531.60, 5,297.40 and 3,312.90 is: 4,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.60 : 5,297.40 = 3,312.90 : x
  2. Step 2: Convert to fraction form
    3,531.60/5,297.40 = 3,312.90/x
  3. Step 3: Cross multiply
    3,531.60x = 5,297.40 × 3,312.90
  4. Step 4: Simplify right side
    3,531.60x = 17,549,756.46
  5. Step 5: Solve for x
    x = 17,549,756.46/3,531.60
  6. Step 6: Final answer
    x = 4,969.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.