Home / 3,313.32-4,970.52-1,121.55

Finding the Fourth Proportional to 3,313.32, 4,970.52 and 1,121.55

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Solution

The fourth proportional to 3,313.32, 4,970.52 and 1,121.55 is: 1,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.32 : 4,970.52 = 1,121.55 : x
  2. Step 2: Convert to fraction form
    3,313.32/4,970.52 = 1,121.55/x
  3. Step 3: Cross multiply
    3,313.32x = 4,970.52 × 1,121.55
  4. Step 4: Simplify right side
    3,313.32x = 5,574,686.71
  5. Step 5: Solve for x
    x = 5,574,686.71/3,313.32
  6. Step 6: Final answer
    x = 1,682.51

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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.