Home / 1,194.13-1,647.90-670.15

Finding the Fourth Proportional to 1,194.13, 1,647.90 and 670.15

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Solution

The fourth proportional to 1,194.13, 1,647.90 and 670.15 is: 924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.13 : 1,647.90 = 670.15 : x
  2. Step 2: Convert to fraction form
    1,194.13/1,647.90 = 670.15/x
  3. Step 3: Cross multiply
    1,194.13x = 1,647.90 × 670.15
  4. Step 4: Simplify right side
    1,194.13x = 1,104,340.19
  5. Step 5: Solve for x
    x = 1,104,340.19/1,194.13
  6. Step 6: Final answer
    x = 924.81

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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.