Home / 1,530.16-2,108.36-1,031.93

Finding the Fourth Proportional to 1,530.16, 2,108.36 and 1,031.93

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Solution

The fourth proportional to 1,530.16, 2,108.36 and 1,031.93 is: 1,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.16 : 2,108.36 = 1,031.93 : x
  2. Step 2: Convert to fraction form
    1,530.16/2,108.36 = 1,031.93/x
  3. Step 3: Cross multiply
    1,530.16x = 2,108.36 × 1,031.93
  4. Step 4: Simplify right side
    1,530.16x = 2,175,672.08
  5. Step 5: Solve for x
    x = 2,175,672.08/1,530.16
  6. Step 6: Final answer
    x = 1,421.86

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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.