Home / 2,058.60-2,840.65-1,395.70

Finding the Fourth Proportional to 2,058.60, 2,840.65 and 1,395.70

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Solution

The fourth proportional to 2,058.60, 2,840.65 and 1,395.70 is: 1,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.60 : 2,840.65 = 1,395.70 : x
  2. Step 2: Convert to fraction form
    2,058.60/2,840.65 = 1,395.70/x
  3. Step 3: Cross multiply
    2,058.60x = 2,840.65 × 1,395.70
  4. Step 4: Simplify right side
    2,058.60x = 3,964,695.21
  5. Step 5: Solve for x
    x = 3,964,695.21/2,058.60
  6. Step 6: Final answer
    x = 1,925.92

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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.