Home / 2,287.69-3,430.40-1,117.19

Finding the Fourth Proportional to 2,287.69, 3,430.40 and 1,117.19

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Solution

The fourth proportional to 2,287.69, 3,430.40 and 1,117.19 is: 1,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.69 : 3,430.40 = 1,117.19 : x
  2. Step 2: Convert to fraction form
    2,287.69/3,430.40 = 1,117.19/x
  3. Step 3: Cross multiply
    2,287.69x = 3,430.40 × 1,117.19
  4. Step 4: Simplify right side
    2,287.69x = 3,832,417.85
  5. Step 5: Solve for x
    x = 3,832,417.85/2,287.69
  6. Step 6: Final answer
    x = 1,675.23

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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.