Home / 3,151.56-4,728.13-1,303.21

Finding the Fourth Proportional to 3,151.56, 4,728.13 and 1,303.21

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Solution

The fourth proportional to 3,151.56, 4,728.13 and 1,303.21 is: 1,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.56 : 4,728.13 = 1,303.21 : x
  2. Step 2: Convert to fraction form
    3,151.56/4,728.13 = 1,303.21/x
  3. Step 3: Cross multiply
    3,151.56x = 4,728.13 × 1,303.21
  4. Step 4: Simplify right side
    3,151.56x = 6,161,746.30
  5. Step 5: Solve for x
    x = 6,161,746.30/3,151.56
  6. Step 6: Final answer
    x = 1,955.14

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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.