Home / 3,045.48-4,202.80-1,719.20

Finding the Fourth Proportional to 3,045.48, 4,202.80 and 1,719.20

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Solution

The fourth proportional to 3,045.48, 4,202.80 and 1,719.20 is: 2,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.48 : 4,202.80 = 1,719.20 : x
  2. Step 2: Convert to fraction form
    3,045.48/4,202.80 = 1,719.20/x
  3. Step 3: Cross multiply
    3,045.48x = 4,202.80 × 1,719.20
  4. Step 4: Simplify right side
    3,045.48x = 7,225,453.76
  5. Step 5: Solve for x
    x = 7,225,453.76/3,045.48
  6. Step 6: Final answer
    x = 2,372.52

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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.