Home / 3,870,746.16-5,341,745.76-2,128,325.36

Finding the Fourth Proportional to 3,870,746.16, 5,341,745.76 and 2,128,325.36

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Solution

The fourth proportional to 3,870,746.16, 5,341,745.76 and 2,128,325.36 is: 2,937,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,746.16 : 5,341,745.76 = 2,128,325.36 : x
  2. Step 2: Convert to fraction form
    3,870,746.16/5,341,745.76 = 2,128,325.36/x
  3. Step 3: Cross multiply
    3,870,746.16x = 5,341,745.76 × 2,128,325.36
  4. Step 4: Simplify right side
    3,870,746.16x = 11,368,972,967,680.47
  5. Step 5: Solve for x
    x = 11,368,972,967,680.47/3,870,746.16
  6. Step 6: Final answer
    x = 2,937,152.81

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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.