Home / 2,299.79-3,173.45-1,355.51

Finding the Fourth Proportional to 2,299.79, 3,173.45 and 1,355.51

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Solution

The fourth proportional to 2,299.79, 3,173.45 and 1,355.51 is: 1,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.79 : 3,173.45 = 1,355.51 : x
  2. Step 2: Convert to fraction form
    2,299.79/3,173.45 = 1,355.51/x
  3. Step 3: Cross multiply
    2,299.79x = 3,173.45 × 1,355.51
  4. Step 4: Simplify right side
    2,299.79x = 4,301,644.37
  5. Step 5: Solve for x
    x = 4,301,644.37/2,299.79
  6. Step 6: Final answer
    x = 1,870.45

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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.