Home / 1,903.84-2,627.20-1,118.32

Finding the Fourth Proportional to 1,903.84, 2,627.20 and 1,118.32

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Solution

The fourth proportional to 1,903.84, 2,627.20 and 1,118.32 is: 1,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.84 : 2,627.20 = 1,118.32 : x
  2. Step 2: Convert to fraction form
    1,903.84/2,627.20 = 1,118.32/x
  3. Step 3: Cross multiply
    1,903.84x = 2,627.20 × 1,118.32
  4. Step 4: Simplify right side
    1,903.84x = 2,938,050.30
  5. Step 5: Solve for x
    x = 2,938,050.30/1,903.84
  6. Step 6: Final answer
    x = 1,543.22

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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.