Home / 1,569.20-2,166.62-1,178.37

Finding the Fourth Proportional to 1,569.20, 2,166.62 and 1,178.37

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Solution

The fourth proportional to 1,569.20, 2,166.62 and 1,178.37 is: 1,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.20 : 2,166.62 = 1,178.37 : x
  2. Step 2: Convert to fraction form
    1,569.20/2,166.62 = 1,178.37/x
  3. Step 3: Cross multiply
    1,569.20x = 2,166.62 × 1,178.37
  4. Step 4: Simplify right side
    1,569.20x = 2,553,074.12
  5. Step 5: Solve for x
    x = 2,553,074.12/1,569.20
  6. Step 6: Final answer
    x = 1,627.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.