Home / 1,125.04-1,552.47-627.67

Finding the Fourth Proportional to 1,125.04, 1,552.47 and 627.67

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Solution

The fourth proportional to 1,125.04, 1,552.47 and 627.67 is: 866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.04 : 1,552.47 = 627.67 : x
  2. Step 2: Convert to fraction form
    1,125.04/1,552.47 = 627.67/x
  3. Step 3: Cross multiply
    1,125.04x = 1,552.47 × 627.67
  4. Step 4: Simplify right side
    1,125.04x = 974,438.84
  5. Step 5: Solve for x
    x = 974,438.84/1,125.04
  6. Step 6: Final answer
    x = 866.14

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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.