Home / 1,815.18-2,498.64-1,567.32

Finding the Fourth Proportional to 1,815.18, 2,498.64 and 1,567.32

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Solution

The fourth proportional to 1,815.18, 2,498.64 and 1,567.32 is: 2,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.18 : 2,498.64 = 1,567.32 : x
  2. Step 2: Convert to fraction form
    1,815.18/2,498.64 = 1,567.32/x
  3. Step 3: Cross multiply
    1,815.18x = 2,498.64 × 1,567.32
  4. Step 4: Simplify right side
    1,815.18x = 3,916,168.44
  5. Step 5: Solve for x
    x = 3,916,168.44/1,815.18
  6. Step 6: Final answer
    x = 2,157.45

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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.