Home / 1,341.02-2,011.85-416.70

Finding the Fourth Proportional to 1,341.02, 2,011.85 and 416.70

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Solution

The fourth proportional to 1,341.02, 2,011.85 and 416.70 is: 625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.02 : 2,011.85 = 416.70 : x
  2. Step 2: Convert to fraction form
    1,341.02/2,011.85 = 416.70/x
  3. Step 3: Cross multiply
    1,341.02x = 2,011.85 × 416.70
  4. Step 4: Simplify right side
    1,341.02x = 838,338.94
  5. Step 5: Solve for x
    x = 838,338.94/1,341.02
  6. Step 6: Final answer
    x = 625.15

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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.