Home / 2,065.12-2,855.28-1,973.32

Finding the Fourth Proportional to 2,065.12, 2,855.28 and 1,973.32

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Solution

The fourth proportional to 2,065.12, 2,855.28 and 1,973.32 is: 2,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.12 : 2,855.28 = 1,973.32 : x
  2. Step 2: Convert to fraction form
    2,065.12/2,855.28 = 1,973.32/x
  3. Step 3: Cross multiply
    2,065.12x = 2,855.28 × 1,973.32
  4. Step 4: Simplify right side
    2,065.12x = 5,634,381.13
  5. Step 5: Solve for x
    x = 5,634,381.13/2,065.12
  6. Step 6: Final answer
    x = 2,728.36

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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.