Home / 1,795.86-2,478.34-1,009.90

Finding the Fourth Proportional to 1,795.86, 2,478.34 and 1,009.90

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Solution

The fourth proportional to 1,795.86, 2,478.34 and 1,009.90 is: 1,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.86 : 2,478.34 = 1,009.90 : x
  2. Step 2: Convert to fraction form
    1,795.86/2,478.34 = 1,009.90/x
  3. Step 3: Cross multiply
    1,795.86x = 2,478.34 × 1,009.90
  4. Step 4: Simplify right side
    1,795.86x = 2,502,875.57
  5. Step 5: Solve for x
    x = 2,502,875.57/1,795.86
  6. Step 6: Final answer
    x = 1,393.69

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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.