Home / 7,085.16-10,628.18-2,155.16

Finding the Fourth Proportional to 7,085.16, 10,628.18 and 2,155.16

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Solution

The fourth proportional to 7,085.16, 10,628.18 and 2,155.16 is: 3,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.16 : 10,628.18 = 2,155.16 : x
  2. Step 2: Convert to fraction form
    7,085.16/10,628.18 = 2,155.16/x
  3. Step 3: Cross multiply
    7,085.16x = 10,628.18 × 2,155.16
  4. Step 4: Simplify right side
    7,085.16x = 22,905,444.20
  5. Step 5: Solve for x
    x = 22,905,444.20/7,085.16
  6. Step 6: Final answer
    x = 3,232.88

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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.