Home / 7,228.83-9,975.52-4,085.02

Finding the Fourth Proportional to 7,228.83, 9,975.52 and 4,085.02

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Solution

The fourth proportional to 7,228.83, 9,975.52 and 4,085.02 is: 5,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.83 : 9,975.52 = 4,085.02 : x
  2. Step 2: Convert to fraction form
    7,228.83/9,975.52 = 4,085.02/x
  3. Step 3: Cross multiply
    7,228.83x = 9,975.52 × 4,085.02
  4. Step 4: Simplify right side
    7,228.83x = 40,750,198.71
  5. Step 5: Solve for x
    x = 40,750,198.71/7,228.83
  6. Step 6: Final answer
    x = 5,637.18

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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.