Home / 1,675.09-2,311.53-929.03

Finding the Fourth Proportional to 1,675.09, 2,311.53 and 929.03

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Solution

The fourth proportional to 1,675.09, 2,311.53 and 929.03 is: 1,282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.09 : 2,311.53 = 929.03 : x
  2. Step 2: Convert to fraction form
    1,675.09/2,311.53 = 929.03/x
  3. Step 3: Cross multiply
    1,675.09x = 2,311.53 × 929.03
  4. Step 4: Simplify right side
    1,675.09x = 2,147,465.67
  5. Step 5: Solve for x
    x = 2,147,465.67/1,675.09
  6. Step 6: Final answer
    x = 1,282.00

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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.