Home / 2,477.67-3,418.65-1,429.13

Finding the Fourth Proportional to 2,477.67, 3,418.65 and 1,429.13

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Solution

The fourth proportional to 2,477.67, 3,418.65 and 1,429.13 is: 1,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.67 : 3,418.65 = 1,429.13 : x
  2. Step 2: Convert to fraction form
    2,477.67/3,418.65 = 1,429.13/x
  3. Step 3: Cross multiply
    2,477.67x = 3,418.65 × 1,429.13
  4. Step 4: Simplify right side
    2,477.67x = 4,885,678.18
  5. Step 5: Solve for x
    x = 4,885,678.18/2,477.67
  6. Step 6: Final answer
    x = 1,971.88

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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.