Home / 2,055.16-2,838.19-1,309.45

Finding the Fourth Proportional to 2,055.16, 2,838.19 and 1,309.45

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Solution

The fourth proportional to 2,055.16, 2,838.19 and 1,309.45 is: 1,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.16 : 2,838.19 = 1,309.45 : x
  2. Step 2: Convert to fraction form
    2,055.16/2,838.19 = 1,309.45/x
  3. Step 3: Cross multiply
    2,055.16x = 2,838.19 × 1,309.45
  4. Step 4: Simplify right side
    2,055.16x = 3,716,461.35
  5. Step 5: Solve for x
    x = 3,716,461.35/2,055.16
  6. Step 6: Final answer
    x = 1,808.36

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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.