Home / 2,486.07-3,430.80-1,366.99

Finding the Fourth Proportional to 2,486.07, 3,430.80 and 1,366.99

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Solution

The fourth proportional to 2,486.07, 3,430.80 and 1,366.99 is: 1,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.07 : 3,430.80 = 1,366.99 : x
  2. Step 2: Convert to fraction form
    2,486.07/3,430.80 = 1,366.99/x
  3. Step 3: Cross multiply
    2,486.07x = 3,430.80 × 1,366.99
  4. Step 4: Simplify right side
    2,486.07x = 4,689,860.72
  5. Step 5: Solve for x
    x = 4,689,860.72/2,486.07
  6. Step 6: Final answer
    x = 1,886.46

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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.