Home / 1,513.67-2,089.70-1,158.91

Finding the Fourth Proportional to 1,513.67, 2,089.70 and 1,158.91

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Solution

The fourth proportional to 1,513.67, 2,089.70 and 1,158.91 is: 1,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.67 : 2,089.70 = 1,158.91 : x
  2. Step 2: Convert to fraction form
    1,513.67/2,089.70 = 1,158.91/x
  3. Step 3: Cross multiply
    1,513.67x = 2,089.70 × 1,158.91
  4. Step 4: Simplify right side
    1,513.67x = 2,421,771.90
  5. Step 5: Solve for x
    x = 2,421,771.90/1,513.67
  6. Step 6: Final answer
    x = 1,599.94

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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.