Home / 1,564.59-2,160.75-1,353.76

Finding the Fourth Proportional to 1,564.59, 2,160.75 and 1,353.76

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Solution

The fourth proportional to 1,564.59, 2,160.75 and 1,353.76 is: 1,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.59 : 2,160.75 = 1,353.76 : x
  2. Step 2: Convert to fraction form
    1,564.59/2,160.75 = 1,353.76/x
  3. Step 3: Cross multiply
    1,564.59x = 2,160.75 × 1,353.76
  4. Step 4: Simplify right side
    1,564.59x = 2,925,131.52
  5. Step 5: Solve for x
    x = 2,925,131.52/1,564.59
  6. Step 6: Final answer
    x = 1,869.58

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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.