Home / 2,762.19-3,812.63-1,818.68

Finding the Fourth Proportional to 2,762.19, 3,812.63 and 1,818.68

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Solution

The fourth proportional to 2,762.19, 3,812.63 and 1,818.68 is: 2,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.19 : 3,812.63 = 1,818.68 : x
  2. Step 2: Convert to fraction form
    2,762.19/3,812.63 = 1,818.68/x
  3. Step 3: Cross multiply
    2,762.19x = 3,812.63 × 1,818.68
  4. Step 4: Simplify right side
    2,762.19x = 6,933,925.77
  5. Step 5: Solve for x
    x = 6,933,925.77/2,762.19
  6. Step 6: Final answer
    x = 2,510.30

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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.