Home / 2,440.61-3,368.09-1,378.59

Finding the Fourth Proportional to 2,440.61, 3,368.09 and 1,378.59

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Solution

The fourth proportional to 2,440.61, 3,368.09 and 1,378.59 is: 1,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.61 : 3,368.09 = 1,378.59 : x
  2. Step 2: Convert to fraction form
    2,440.61/3,368.09 = 1,378.59/x
  3. Step 3: Cross multiply
    2,440.61x = 3,368.09 × 1,378.59
  4. Step 4: Simplify right side
    2,440.61x = 4,643,215.19
  5. Step 5: Solve for x
    x = 4,643,215.19/2,440.61
  6. Step 6: Final answer
    x = 1,902.48

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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.