Home / 1,511.53-2,088.18-1,013.99

Finding the Fourth Proportional to 1,511.53, 2,088.18 and 1,013.99

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Solution

The fourth proportional to 1,511.53, 2,088.18 and 1,013.99 is: 1,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.53 : 2,088.18 = 1,013.99 : x
  2. Step 2: Convert to fraction form
    1,511.53/2,088.18 = 1,013.99/x
  3. Step 3: Cross multiply
    1,511.53x = 2,088.18 × 1,013.99
  4. Step 4: Simplify right side
    1,511.53x = 2,117,383.20
  5. Step 5: Solve for x
    x = 2,117,383.20/1,511.53
  6. Step 6: Final answer
    x = 1,400.82

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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.