Home / 1,511.59-2,088.64-1,249.15

Finding the Fourth Proportional to 1,511.59, 2,088.64 and 1,249.15

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Solution

The fourth proportional to 1,511.59, 2,088.64 and 1,249.15 is: 1,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.59 : 2,088.64 = 1,249.15 : x
  2. Step 2: Convert to fraction form
    1,511.59/2,088.64 = 1,249.15/x
  3. Step 3: Cross multiply
    1,511.59x = 2,088.64 × 1,249.15
  4. Step 4: Simplify right side
    1,511.59x = 2,609,018.41
  5. Step 5: Solve for x
    x = 2,609,018.41/1,511.59
  6. Step 6: Final answer
    x = 1,726.01

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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.