Home / 1,567.36-2,162.86-904.65

Finding the Fourth Proportional to 1,567.36, 2,162.86 and 904.65

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Solution

The fourth proportional to 1,567.36, 2,162.86 and 904.65 is: 1,248.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.36 : 2,162.86 = 904.65 : x
  2. Step 2: Convert to fraction form
    1,567.36/2,162.86 = 904.65/x
  3. Step 3: Cross multiply
    1,567.36x = 2,162.86 × 904.65
  4. Step 4: Simplify right side
    1,567.36x = 1,956,631.30
  5. Step 5: Solve for x
    x = 1,956,631.30/1,567.36
  6. Step 6: Final answer
    x = 1,248.36

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Half scale
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Double scale
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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.