Home / 2,486.07-3,430.71-1,366.92

Finding the Fourth Proportional to 2,486.07, 3,430.71 and 1,366.92

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Solution

The fourth proportional to 2,486.07, 3,430.71 and 1,366.92 is: 1,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.07 : 3,430.71 = 1,366.92 : x
  2. Step 2: Convert to fraction form
    2,486.07/3,430.71 = 1,366.92/x
  3. Step 3: Cross multiply
    2,486.07x = 3,430.71 × 1,366.92
  4. Step 4: Simplify right side
    2,486.07x = 4,689,506.11
  5. Step 5: Solve for x
    x = 4,689,506.11/2,486.07
  6. Step 6: Final answer
    x = 1,886.31

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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.