Home / 1,478.46-2,040.57-1,036.20

Finding the Fourth Proportional to 1,478.46, 2,040.57 and 1,036.20

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Solution

The fourth proportional to 1,478.46, 2,040.57 and 1,036.20 is: 1,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.46 : 2,040.57 = 1,036.20 : x
  2. Step 2: Convert to fraction form
    1,478.46/2,040.57 = 1,036.20/x
  3. Step 3: Cross multiply
    1,478.46x = 2,040.57 × 1,036.20
  4. Step 4: Simplify right side
    1,478.46x = 2,114,438.63
  5. Step 5: Solve for x
    x = 2,114,438.63/1,478.46
  6. Step 6: Final answer
    x = 1,430.16

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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.