Home / 1,613.90-2,223.03-1,140.98

Finding the Fourth Proportional to 1,613.90, 2,223.03 and 1,140.98

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Solution

The fourth proportional to 1,613.90, 2,223.03 and 1,140.98 is: 1,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.90 : 2,223.03 = 1,140.98 : x
  2. Step 2: Convert to fraction form
    1,613.90/2,223.03 = 1,140.98/x
  3. Step 3: Cross multiply
    1,613.90x = 2,223.03 × 1,140.98
  4. Step 4: Simplify right side
    1,613.90x = 2,536,432.77
  5. Step 5: Solve for x
    x = 2,536,432.77/1,613.90
  6. Step 6: Final answer
    x = 1,571.62

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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.