Home / 1,177.47-1,624.21-804.26

Finding the Fourth Proportional to 1,177.47, 1,624.21 and 804.26

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Solution

The fourth proportional to 1,177.47, 1,624.21 and 804.26 is: 1,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.47 : 1,624.21 = 804.26 : x
  2. Step 2: Convert to fraction form
    1,177.47/1,624.21 = 804.26/x
  3. Step 3: Cross multiply
    1,177.47x = 1,624.21 × 804.26
  4. Step 4: Simplify right side
    1,177.47x = 1,306,289.18
  5. Step 5: Solve for x
    x = 1,306,289.18/1,177.47
  6. Step 6: Final answer
    x = 1,109.40

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1.5x scale

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.