Home / 3,312.90-4,969.35-3,134.70

Finding the Fourth Proportional to 3,312.90, 4,969.35 and 3,134.70

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Solution

The fourth proportional to 3,312.90, 4,969.35 and 3,134.70 is: 4,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.90 : 4,969.35 = 3,134.70 : x
  2. Step 2: Convert to fraction form
    3,312.90/4,969.35 = 3,134.70/x
  3. Step 3: Cross multiply
    3,312.90x = 4,969.35 × 3,134.70
  4. Step 4: Simplify right side
    3,312.90x = 15,577,421.45
  5. Step 5: Solve for x
    x = 15,577,421.45/3,312.90
  6. Step 6: Final answer
    x = 4,702.05

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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.