Home / 2,485.79-3,430.73-1,437.92

Finding the Fourth Proportional to 2,485.79, 3,430.73 and 1,437.92

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Solution

The fourth proportional to 2,485.79, 3,430.73 and 1,437.92 is: 1,984.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.79 : 3,430.73 = 1,437.92 : x
  2. Step 2: Convert to fraction form
    2,485.79/3,430.73 = 1,437.92/x
  3. Step 3: Cross multiply
    2,485.79x = 3,430.73 × 1,437.92
  4. Step 4: Simplify right side
    2,485.79x = 4,933,108.09
  5. Step 5: Solve for x
    x = 4,933,108.09/2,485.79
  6. Step 6: Final answer
    x = 1,984.52

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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.