Home / 1,536.46-2,118.64-1,038.23

Finding the Fourth Proportional to 1,536.46, 2,118.64 and 1,038.23

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Solution

The fourth proportional to 1,536.46, 2,118.64 and 1,038.23 is: 1,431.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.46 : 2,118.64 = 1,038.23 : x
  2. Step 2: Convert to fraction form
    1,536.46/2,118.64 = 1,038.23/x
  3. Step 3: Cross multiply
    1,536.46x = 2,118.64 × 1,038.23
  4. Step 4: Simplify right side
    1,536.46x = 2,199,638.31
  5. Step 5: Solve for x
    x = 2,199,638.31/1,536.46
  6. Step 6: Final answer
    x = 1,431.63

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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.