Home / 1,482.56-2,211.28-1,274.72

Finding the Fourth Proportional to 1,482.56, 2,211.28 and 1,274.72

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Solution

The fourth proportional to 1,482.56, 2,211.28 and 1,274.72 is: 1,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.56 : 2,211.28 = 1,274.72 : x
  2. Step 2: Convert to fraction form
    1,482.56/2,211.28 = 1,274.72/x
  3. Step 3: Cross multiply
    1,482.56x = 2,211.28 × 1,274.72
  4. Step 4: Simplify right side
    1,482.56x = 2,818,762.84
  5. Step 5: Solve for x
    x = 2,818,762.84/1,482.56
  6. Step 6: Final answer
    x = 1,901.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.