Home / 1,707.30-2,556.90-1,051.20

Finding the Fourth Proportional to 1,707.30, 2,556.90 and 1,051.20

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Solution

The fourth proportional to 1,707.30, 2,556.90 and 1,051.20 is: 1,574.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.30 : 2,556.90 = 1,051.20 : x
  2. Step 2: Convert to fraction form
    1,707.30/2,556.90 = 1,051.20/x
  3. Step 3: Cross multiply
    1,707.30x = 2,556.90 × 1,051.20
  4. Step 4: Simplify right side
    1,707.30x = 2,687,813.28
  5. Step 5: Solve for x
    x = 2,687,813.28/1,707.30
  6. Step 6: Final answer
    x = 1,574.31

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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.