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Finding the Fourth Proportional to 848.88, 1,267.20 and 739.50

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Solution

The fourth proportional to 848.88, 1,267.20 and 739.50 is: 1,103.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.88 : 1,267.20 = 739.50 : x
  2. Step 2: Convert to fraction form
    848.88/1,267.20 = 739.50/x
  3. Step 3: Cross multiply
    848.88x = 1,267.20 × 739.50
  4. Step 4: Simplify right side
    848.88x = 937,094.40
  5. Step 5: Solve for x
    x = 937,094.40/848.88
  6. Step 6: Final answer
    x = 1,103.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.