Home / 2,159.18-3,224.14-1,715.45

Finding the Fourth Proportional to 2,159.18, 3,224.14 and 1,715.45

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Solution

The fourth proportional to 2,159.18, 3,224.14 and 1,715.45 is: 2,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.18 : 3,224.14 = 1,715.45 : x
  2. Step 2: Convert to fraction form
    2,159.18/3,224.14 = 1,715.45/x
  3. Step 3: Cross multiply
    2,159.18x = 3,224.14 × 1,715.45
  4. Step 4: Simplify right side
    2,159.18x = 5,530,830.55
  5. Step 5: Solve for x
    x = 5,530,830.55/2,159.18
  6. Step 6: Final answer
    x = 2,561.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.