Home / 2,920.51-4,031.03-1,802.37

Finding the Fourth Proportional to 2,920.51, 4,031.03 and 1,802.37

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Solution

The fourth proportional to 2,920.51, 4,031.03 and 1,802.37 is: 2,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.51 : 4,031.03 = 1,802.37 : x
  2. Step 2: Convert to fraction form
    2,920.51/4,031.03 = 1,802.37/x
  3. Step 3: Cross multiply
    2,920.51x = 4,031.03 × 1,802.37
  4. Step 4: Simplify right side
    2,920.51x = 7,265,404.49
  5. Step 5: Solve for x
    x = 7,265,404.49/2,920.51
  6. Step 6: Final answer
    x = 2,487.72

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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.