Home / 6,880.19-10,320.48-1,686.06

Finding the Fourth Proportional to 6,880.19, 10,320.48 and 1,686.06

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Solution

The fourth proportional to 6,880.19, 10,320.48 and 1,686.06 is: 2,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.19 : 10,320.48 = 1,686.06 : x
  2. Step 2: Convert to fraction form
    6,880.19/10,320.48 = 1,686.06/x
  3. Step 3: Cross multiply
    6,880.19x = 10,320.48 × 1,686.06
  4. Step 4: Simplify right side
    6,880.19x = 17,400,948.51
  5. Step 5: Solve for x
    x = 17,400,948.51/6,880.19
  6. Step 6: Final answer
    x = 2,529.14

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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.