Home / 1,317.60-1,976.49-586.98

Finding the Fourth Proportional to 1,317.60, 1,976.49 and 586.98

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Solution

The fourth proportional to 1,317.60, 1,976.49 and 586.98 is: 880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.60 : 1,976.49 = 586.98 : x
  2. Step 2: Convert to fraction form
    1,317.60/1,976.49 = 586.98/x
  3. Step 3: Cross multiply
    1,317.60x = 1,976.49 × 586.98
  4. Step 4: Simplify right side
    1,317.60x = 1,160,160.10
  5. Step 5: Solve for x
    x = 1,160,160.10/1,317.60
  6. Step 6: Final answer
    x = 880.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.