Home / 1,050.10-1,573.80-928.60

Finding the Fourth Proportional to 1,050.10, 1,573.80 and 928.60

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Solution

The fourth proportional to 1,050.10, 1,573.80 and 928.60 is: 1,391.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.10 : 1,573.80 = 928.60 : x
  2. Step 2: Convert to fraction form
    1,050.10/1,573.80 = 928.60/x
  3. Step 3: Cross multiply
    1,050.10x = 1,573.80 × 928.60
  4. Step 4: Simplify right side
    1,050.10x = 1,461,430.68
  5. Step 5: Solve for x
    x = 1,461,430.68/1,050.10
  6. Step 6: Final answer
    x = 1,391.71

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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.