Home / 3,036.42-4,548.56-1,390.70

Finding the Fourth Proportional to 3,036.42, 4,548.56 and 1,390.70

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Solution

The fourth proportional to 3,036.42, 4,548.56 and 1,390.70 is: 2,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.42 : 4,548.56 = 1,390.70 : x
  2. Step 2: Convert to fraction form
    3,036.42/4,548.56 = 1,390.70/x
  3. Step 3: Cross multiply
    3,036.42x = 4,548.56 × 1,390.70
  4. Step 4: Simplify right side
    3,036.42x = 6,325,686.81
  5. Step 5: Solve for x
    x = 6,325,686.81/3,036.42
  6. Step 6: Final answer
    x = 2,083.27

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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.