Home / 1,639.07-2,258.77-1,048.58

Finding the Fourth Proportional to 1,639.07, 2,258.77 and 1,048.58

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Solution

The fourth proportional to 1,639.07, 2,258.77 and 1,048.58 is: 1,445.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.07 : 2,258.77 = 1,048.58 : x
  2. Step 2: Convert to fraction form
    1,639.07/2,258.77 = 1,048.58/x
  3. Step 3: Cross multiply
    1,639.07x = 2,258.77 × 1,048.58
  4. Step 4: Simplify right side
    1,639.07x = 2,368,484.51
  5. Step 5: Solve for x
    x = 2,368,484.51/1,639.07
  6. Step 6: Final answer
    x = 1,445.02

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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.