Home / 2,688.34-3,707.76-1,802.47

Finding the Fourth Proportional to 2,688.34, 3,707.76 and 1,802.47

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Solution

The fourth proportional to 2,688.34, 3,707.76 and 1,802.47 is: 2,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.34 : 3,707.76 = 1,802.47 : x
  2. Step 2: Convert to fraction form
    2,688.34/3,707.76 = 1,802.47/x
  3. Step 3: Cross multiply
    2,688.34x = 3,707.76 × 1,802.47
  4. Step 4: Simplify right side
    2,688.34x = 6,683,126.17
  5. Step 5: Solve for x
    x = 6,683,126.17/2,688.34
  6. Step 6: Final answer
    x = 2,485.97

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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.