Home / 1,477.83-2,038.32-1,290.93

Finding the Fourth Proportional to 1,477.83, 2,038.32 and 1,290.93

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Solution

The fourth proportional to 1,477.83, 2,038.32 and 1,290.93 is: 1,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.83 : 2,038.32 = 1,290.93 : x
  2. Step 2: Convert to fraction form
    1,477.83/2,038.32 = 1,290.93/x
  3. Step 3: Cross multiply
    1,477.83x = 2,038.32 × 1,290.93
  4. Step 4: Simplify right side
    1,477.83x = 2,631,328.44
  5. Step 5: Solve for x
    x = 2,631,328.44/1,477.83
  6. Step 6: Final answer
    x = 1,780.54

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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.