Home / 1,795.70-2,478.08-1,087.31

Finding the Fourth Proportional to 1,795.70, 2,478.08 and 1,087.31

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Solution

The fourth proportional to 1,795.70, 2,478.08 and 1,087.31 is: 1,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.70 : 2,478.08 = 1,087.31 : x
  2. Step 2: Convert to fraction form
    1,795.70/2,478.08 = 1,087.31/x
  3. Step 3: Cross multiply
    1,795.70x = 2,478.08 × 1,087.31
  4. Step 4: Simplify right side
    1,795.70x = 2,694,423.34
  5. Step 5: Solve for x
    x = 2,694,423.34/1,795.70
  6. Step 6: Final answer
    x = 1,500.49

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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.