Home / 4,385.40-6,570.81-3,084.15

Finding the Fourth Proportional to 4,385.40, 6,570.81 and 3,084.15

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Solution

The fourth proportional to 4,385.40, 6,570.81 and 3,084.15 is: 4,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.40 : 6,570.81 = 3,084.15 : x
  2. Step 2: Convert to fraction form
    4,385.40/6,570.81 = 3,084.15/x
  3. Step 3: Cross multiply
    4,385.40x = 6,570.81 × 3,084.15
  4. Step 4: Simplify right side
    4,385.40x = 20,265,363.66
  5. Step 5: Solve for x
    x = 20,265,363.66/4,385.40
  6. Step 6: Final answer
    x = 4,621.10

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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.