Home / 1,622.12-2,433.56-526.40

Finding the Fourth Proportional to 1,622.12, 2,433.56 and 526.40

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Solution

The fourth proportional to 1,622.12, 2,433.56 and 526.40 is: 789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.12 : 2,433.56 = 526.40 : x
  2. Step 2: Convert to fraction form
    1,622.12/2,433.56 = 526.40/x
  3. Step 3: Cross multiply
    1,622.12x = 2,433.56 × 526.40
  4. Step 4: Simplify right side
    1,622.12x = 1,281,011.18
  5. Step 5: Solve for x
    x = 1,281,011.18/1,622.12
  6. Step 6: Final answer
    x = 789.72

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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.