Home / 3,385.90-5,070.93-2,928.70

Finding the Fourth Proportional to 3,385.90, 5,070.93 and 2,928.70

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Solution

The fourth proportional to 3,385.90, 5,070.93 and 2,928.70 is: 4,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.90 : 5,070.93 = 2,928.70 : x
  2. Step 2: Convert to fraction form
    3,385.90/5,070.93 = 2,928.70/x
  3. Step 3: Cross multiply
    3,385.90x = 5,070.93 × 2,928.70
  4. Step 4: Simplify right side
    3,385.90x = 14,851,232.69
  5. Step 5: Solve for x
    x = 14,851,232.69/3,385.90
  6. Step 6: Final answer
    x = 4,386.20

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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.