Home / 1,312.04-1,807.70-1,263.44

Finding the Fourth Proportional to 1,312.04, 1,807.70 and 1,263.44

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Solution

The fourth proportional to 1,312.04, 1,807.70 and 1,263.44 is: 1,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.04 : 1,807.70 = 1,263.44 : x
  2. Step 2: Convert to fraction form
    1,312.04/1,807.70 = 1,263.44/x
  3. Step 3: Cross multiply
    1,312.04x = 1,807.70 × 1,263.44
  4. Step 4: Simplify right side
    1,312.04x = 2,283,920.49
  5. Step 5: Solve for x
    x = 2,283,920.49/1,312.04
  6. Step 6: Final answer
    x = 1,740.74

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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.