Home / 1,164.70-1,746.78-515.08

Finding the Fourth Proportional to 1,164.70, 1,746.78 and 515.08

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Solution

The fourth proportional to 1,164.70, 1,746.78 and 515.08 is: 772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.70 : 1,746.78 = 515.08 : x
  2. Step 2: Convert to fraction form
    1,164.70/1,746.78 = 515.08/x
  3. Step 3: Cross multiply
    1,164.70x = 1,746.78 × 515.08
  4. Step 4: Simplify right side
    1,164.70x = 899,731.44
  5. Step 5: Solve for x
    x = 899,731.44/1,164.70
  6. Step 6: Final answer
    x = 772.50

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1.5x scale

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.