Home / 1,620.46-2,430.84-975.30

Finding the Fourth Proportional to 1,620.46, 2,430.84 and 975.30

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Solution

The fourth proportional to 1,620.46, 2,430.84 and 975.30 is: 1,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.46 : 2,430.84 = 975.30 : x
  2. Step 2: Convert to fraction form
    1,620.46/2,430.84 = 975.30/x
  3. Step 3: Cross multiply
    1,620.46x = 2,430.84 × 975.30
  4. Step 4: Simplify right side
    1,620.46x = 2,370,792.79
  5. Step 5: Solve for x
    x = 2,370,792.79/1,620.46
  6. Step 6: Final answer
    x = 1,463.04

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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.