Home / 4,085.87-6,129.88-1,164.20

Finding the Fourth Proportional to 4,085.87, 6,129.88 and 1,164.20

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Solution

The fourth proportional to 4,085.87, 6,129.88 and 1,164.20 is: 1,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.87 : 6,129.88 = 1,164.20 : x
  2. Step 2: Convert to fraction form
    4,085.87/6,129.88 = 1,164.20/x
  3. Step 3: Cross multiply
    4,085.87x = 6,129.88 × 1,164.20
  4. Step 4: Simplify right side
    4,085.87x = 7,136,372.74
  5. Step 5: Solve for x
    x = 7,136,372.74/4,085.87
  6. Step 6: Final answer
    x = 1,746.60

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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.