Home / 2,485.13-3,429.48-1,437.20

Finding the Fourth Proportional to 2,485.13, 3,429.48 and 1,437.20

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Solution

The fourth proportional to 2,485.13, 3,429.48 and 1,437.20 is: 1,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.13 : 3,429.48 = 1,437.20 : x
  2. Step 2: Convert to fraction form
    2,485.13/3,429.48 = 1,437.20/x
  3. Step 3: Cross multiply
    2,485.13x = 3,429.48 × 1,437.20
  4. Step 4: Simplify right side
    2,485.13x = 4,928,831.51
  5. Step 5: Solve for x
    x = 4,928,831.51/2,485.13
  6. Step 6: Final answer
    x = 1,983.33

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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.