Home / 1,547.10-2,131.74-1,048.86

Finding the Fourth Proportional to 1,547.10, 2,131.74 and 1,048.86

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Solution

The fourth proportional to 1,547.10, 2,131.74 and 1,048.86 is: 1,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.10 : 2,131.74 = 1,048.86 : x
  2. Step 2: Convert to fraction form
    1,547.10/2,131.74 = 1,048.86/x
  3. Step 3: Cross multiply
    1,547.10x = 2,131.74 × 1,048.86
  4. Step 4: Simplify right side
    1,547.10x = 2,235,896.82
  5. Step 5: Solve for x
    x = 2,235,896.82/1,547.10
  6. Step 6: Final answer
    x = 1,445.22

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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.