Home / 1,565.44-2,158.84-975.56

Finding the Fourth Proportional to 1,565.44, 2,158.84 and 975.56

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Solution

The fourth proportional to 1,565.44, 2,158.84 and 975.56 is: 1,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.44 : 2,158.84 = 975.56 : x
  2. Step 2: Convert to fraction form
    1,565.44/2,158.84 = 975.56/x
  3. Step 3: Cross multiply
    1,565.44x = 2,158.84 × 975.56
  4. Step 4: Simplify right side
    1,565.44x = 2,106,077.95
  5. Step 5: Solve for x
    x = 2,106,077.95/1,565.44
  6. Step 6: Final answer
    x = 1,345.36

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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.