Home / 1,710.23-2,565.38-670.19

Finding the Fourth Proportional to 1,710.23, 2,565.38 and 670.19

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Solution

The fourth proportional to 1,710.23, 2,565.38 and 670.19 is: 1,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.23 : 2,565.38 = 670.19 : x
  2. Step 2: Convert to fraction form
    1,710.23/2,565.38 = 670.19/x
  3. Step 3: Cross multiply
    1,710.23x = 2,565.38 × 670.19
  4. Step 4: Simplify right side
    1,710.23x = 1,719,292.02
  5. Step 5: Solve for x
    x = 1,719,292.02/1,710.23
  6. Step 6: Final answer
    x = 1,005.30

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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.