Home / 1,041.40-1,438.82-1,031.16

Finding the Fourth Proportional to 1,041.40, 1,438.82 and 1,031.16

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Solution

The fourth proportional to 1,041.40, 1,438.82 and 1,031.16 is: 1,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.40 : 1,438.82 = 1,031.16 : x
  2. Step 2: Convert to fraction form
    1,041.40/1,438.82 = 1,031.16/x
  3. Step 3: Cross multiply
    1,041.40x = 1,438.82 × 1,031.16
  4. Step 4: Simplify right side
    1,041.40x = 1,483,653.63
  5. Step 5: Solve for x
    x = 1,483,653.63/1,041.40
  6. Step 6: Final answer
    x = 1,424.67

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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.