Home / 6,688.74-10,030.68-2,990.28

Finding the Fourth Proportional to 6,688.74, 10,030.68 and 2,990.28

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Solution

The fourth proportional to 6,688.74, 10,030.68 and 2,990.28 is: 4,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.74 : 10,030.68 = 2,990.28 : x
  2. Step 2: Convert to fraction form
    6,688.74/10,030.68 = 2,990.28/x
  3. Step 3: Cross multiply
    6,688.74x = 10,030.68 × 2,990.28
  4. Step 4: Simplify right side
    6,688.74x = 29,994,541.79
  5. Step 5: Solve for x
    x = 29,994,541.79/6,688.74
  6. Step 6: Final answer
    x = 4,484.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.