Home / 1,561.95-2,332.40-1,357.02

Finding the Fourth Proportional to 1,561.95, 2,332.40 and 1,357.02

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Solution

The fourth proportional to 1,561.95, 2,332.40 and 1,357.02 is: 2,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.95 : 2,332.40 = 1,357.02 : x
  2. Step 2: Convert to fraction form
    1,561.95/2,332.40 = 1,357.02/x
  3. Step 3: Cross multiply
    1,561.95x = 2,332.40 × 1,357.02
  4. Step 4: Simplify right side
    1,561.95x = 3,165,106.66
  5. Step 5: Solve for x
    x = 3,165,106.66/1,561.95
  6. Step 6: Final answer
    x = 2,026.38

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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.