Home / 1,707.40-2,355.51-1,353.36

Finding the Fourth Proportional to 1,707.40, 2,355.51 and 1,353.36

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Solution

The fourth proportional to 1,707.40, 2,355.51 and 1,353.36 is: 1,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.40 : 2,355.51 = 1,353.36 : x
  2. Step 2: Convert to fraction form
    1,707.40/2,355.51 = 1,353.36/x
  3. Step 3: Cross multiply
    1,707.40x = 2,355.51 × 1,353.36
  4. Step 4: Simplify right side
    1,707.40x = 3,187,853.01
  5. Step 5: Solve for x
    x = 3,187,853.01/1,707.40
  6. Step 6: Final answer
    x = 1,867.08

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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.