Home / 1,959.24-2,938.86-1,302.40

Finding the Fourth Proportional to 1,959.24, 2,938.86 and 1,302.40

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Solution

The fourth proportional to 1,959.24, 2,938.86 and 1,302.40 is: 1,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.24 : 2,938.86 = 1,302.40 : x
  2. Step 2: Convert to fraction form
    1,959.24/2,938.86 = 1,302.40/x
  3. Step 3: Cross multiply
    1,959.24x = 2,938.86 × 1,302.40
  4. Step 4: Simplify right side
    1,959.24x = 3,827,571.26
  5. Step 5: Solve for x
    x = 3,827,571.26/1,959.24
  6. Step 6: Final answer
    x = 1,953.60

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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.