Home / 1,937.40-2,672.75-1,307.74

Finding the Fourth Proportional to 1,937.40, 2,672.75 and 1,307.74

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Solution

The fourth proportional to 1,937.40, 2,672.75 and 1,307.74 is: 1,804.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.40 : 2,672.75 = 1,307.74 : x
  2. Step 2: Convert to fraction form
    1,937.40/2,672.75 = 1,307.74/x
  3. Step 3: Cross multiply
    1,937.40x = 2,672.75 × 1,307.74
  4. Step 4: Simplify right side
    1,937.40x = 3,495,242.18
  5. Step 5: Solve for x
    x = 3,495,242.18/1,937.40
  6. Step 6: Final answer
    x = 1,804.09

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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.